Information processing apparatus, information processing method, and program

ABSTRACT

Provided is an information processing apparatus including an operation amount acquiring unit that acquires an operation amount of an operation input on a display screen; a depth position computing unit that computes a depth position of a three-dimensionally viewable operation object, on the basis of the operation amount; 
     and a display processing unit that executes processing for adjusting the depth position of the operation object on the basis of the depth position and displaying the operation object on the display screen.

BACKGROUND

The present disclosure relates to an information processing apparatus,an information processing method, and a program.

Recently, computational capabilities and communication speeds ofinformation processing apparatuses have been improved dramatically.However, in a relatively small information processing apparatus such asa portable terminal, because a size of a display unit to display aprocessing result is limited, an amount of information that can bedisplayed is limited and high performance may not be sufficiently used.

Therefore, technologies for using the display unit of the informationprocessing apparatus effectively have been developed. For example,technology for providing a touch panel in the display unit to realizesecuring operability and enlarging the display unit at the same time hasbeen known. Specifically, technology for using a pressing condition ofthe touch panel as an operation input has been described in JapanesePatent Application Laid-Open (JP-A) Nos. 2010-109552 and 2009-009252.

In recent years, three-dimensional displays and content for thethree-dimensional displays have increased. In particular,three-dimensional displays for mobile devices mounted with the touchpanels have been spread.

SUMMARY

However, it is generally necessary to use a picture photographed by aspecial stereoscopic camera or edit a photographed image using specialsoftware for professionals, such as a CAD, in order to generatethree-dimensionally viewable content. As such, technology for allowing auser to easily generate content having depth is not yet spread and it isdifficult for the user to easily generate the content having the depthto be three-dimensionally viewed.

Thus, it is desirable to generate three-dimensionally viewable contentwith a simple operation.

According to an embodiment of the present disclosure, there is providedan information processing apparatus which includes an operation amountacquiring unit that acquires an operation amount of an operation inputon a display screen, a depth position computing unit that computes adepth position of a three-dimensionally viewable operation object, onthe basis of the operation amount, and a display processing unit thatexecutes processing for adjusting the depth position of the operationobject on the basis of the depth position and displaying the operationobject on the display screen.

According to another embodiment of the present disclosure, there isprovided an information processing method which includes acquiring anoperation amount of an operation input on a display screen, computing adepth position of a three-dimensionally viewable operation object, onthe basis of the operation amount, and adjusting the depth position ofthe operation object on the basis of the depth position and displayingthe operation object on the display screen.

According to another embodiment of the present disclosure, there isprovided a program for causing a computer to execute acquiring anoperation amount of an operation input on a display screen, computing adepth position of a three-dimensionally viewable operation object, onthe basis of the operation amount, and adjusting the depth position ofthe operation object on the basis of the depth position and displayingthe operation object on the display screen.

According to the embodiments of the present disclosure described above,three-dimensionally viewable content can be generated with a simpleoperation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view illustrating an aspect of the case in which auser operates an information processing apparatus according to anembodiment of the present disclosure;

FIGS. 2A and 2B are schematic views illustrating an operation forchanging a depth position of a specific character by the informationprocessing apparatus according to the embodiment;

FIGS. 3A to 3C are schematic views illustrating an operation when theinformation processing apparatus includes a normal touch panel in adisplay screen;

FIG. 4 is a schematic view illustrating an example of the case in whichan operation member such as a slider is displayed on the display screenand a depth position of an operation object is adjusted by an operationof the operation member;

FIG. 5 is a schematic view illustrating an aspect of the case in whichthe depth position of the operation object is changed by an operation ofthe operation member;

FIGS. 6A to 6D are schematic views illustrating an outline of anoperation of a proximity touch panel;

FIG. 7 is a schematic view illustrating an example of a configuration ofthe information processing apparatus;

FIG. 8 is a block diagram illustrating a functional configuration of aCPU;

FIG. 9 is a flowchart illustrating processing in the case of using thenormal touch panel;

FIG. 10 is a flowchart illustrating processing in he case of using thenormal touch panel;

FIG. 11 is a flowchart illustrating processing for adjusting the depthposition of the operation object by an operation of the proximity touchpanel; and

FIG. 12 is a flowchart illustrating processing for adjusting the depthposition of the operation object by an operation of a pressure-sensitivetouch panel.

DETAILED DESCRIPTION OF THE EMBODIMENT(S)

Hereinafter, preferred embodiments of the present disclosure will bedescribed in detail with reference to the appended drawings. Note that,in this specification and the appended drawings, structural elementsthat have substantially the same function and structure are denoted withthe same reference numerals, and repeated explanation of thesestructural elements is omitted.

The following description will be made in the order described below.

-   1. Outline of Embodiment-   2. Method of Preventing Overlapping of Objects according to Depth    Adjustment-   3. Details of Operation for Adjusting Depth Position-   3-1, Case of Normal Touch Panel-   3-2. Example of Proximity Touch Panel-   3-3. Pressure-Sensitive Touch Panel-   4. Example of Configuration of Information Processing Apparatus-   5. Example of Processing in information Processing Apparatus-   5-1. Case of Normal Touch Panel-   5-2. Case of Proximity Touch Panel-   5-3. Case of Pressure-Sensitive Touch Panel

1. Outline of Embodiment

FIG. 1 is a schematic view illustrating an aspect of the case in which auser operates an information processing apparatus 100 according to anembodiment of the present disclosure. As illustrated in FIG. 1, thisembodiment relates to an operation method of changing a depth position(Z coordinate) of any object with respect to a display screen, by athree-dimensional display (information processing apparatus 100). Atthis time, as illustrated in FIG. 1, the user can intuitively add astereoscopic effect to an object in the display screen, by making agesture that can coexist with an existing touch operation, according toa device. In this embodiment detection using a touch panel, pressuredetection, and proximity detection are used as examples of an operationdetection method and an operation method suitable for each case isexemplified.

2. Method of Preventing Overlapping of Objects according to DepthAdjustment

FIGS. 2A and 2B are schematic views illustrating an operation forchanging a depth position of a specific character by the informationprocessing apparatus 100 according to the embodiment. As illustrated inFIGS. 2A and 2B, a depth position of information such as an image or acharacter is adjusted by an operation using the touch panel. FIGS. 2Aand 2B illustrate an example of the case in which a depth direction of acharacter “concerned” in a text of an email is adjusted. FIG. 2A is afront view of a display screen 102 of the information processingapparatus 100 and a schematic view illustrating a state in which thedisplay screen 102 is viewed from a right side, which illustrates anexample of the case in which a position of the character “concerned” inthe depth direction is adjusted to a forward side of the display screen102. FIG. 2B is a front view of the display screen 102 of theinformation processing apparatus 100 and a schematic view illustrating astate in which the display screen 102 is viewed from the right side,which illustrates an example of the case in which the position of thecharacter “concerned” in the depth direction is adjusted to a backwardside of the display screen 102.

As illustrated in FIG. 2A, if the position of the character “concerned”in the depth direction is adjusted to the forward side of the displayscreen 102, a size of the character “concerned” increases as much as thecharacter is positioned at the forward side. Meanwhile, in FIG. 2B,because the position of the character “concerned” in the depth directionis slightly deeper than the position of the display screen 102, the sizeof the character “concerned” is almost equal to sizes of characters “I'ma little” and “!” arranged at left and right sides of the character“concerned”.

For this reason, in the case of FIG. 2A, processing for shifting thecharacters “I'm a little” and “!” arranged at the left and right sidesof the character “concerned” in leftward and rightward directions(directions shown by arrows in FIG. 2A) is executed. Thereby, when theposition of the character “concerned” in the depth direction is adjustedto the forward side of the display screen 102, the characters “I'm alittle” and “!” arranged at the left and right sides can be preventedfrom being covered by the character “concerned”. In FIGS. 2A and 2B, theexample of the case in which the characters included in the text of theemail are adjusted has been illustrated. However, the configurationillustrated in FIGS. 2A and 2B is applicable to the case in which adepth position of another image such as a photo is adjusted.

3. Details of Operation for Adjusting Depth Position

Hereinafter, each of three kinds of touch panels (normal touchpanel/proximity touch panel/pressure-sensitive touch panel) will bedescribed.

(3-1. Case of Normal Touch Panel)

FIGS. 3A to 3C are schematic views illustrating an operation when theinformation processing apparatus 100 includes the normal touch panel nthe display screen 102. In the operation illustrated in FIGS. 3A to 3C,a depth position of an object is adjusted by a so-calledpinch-in/pinch-out operation. The pinch-in/pinch-out operation is anoperation for changing a distance (pinch distance) between a thumb andan index finger, as illustrated in FIGS. 3A to 3C.

In this case, when a user normally performs the pinch-in/pinch-outoperation, an operation object (for example, a photo or a character) 104that is displayed on the display screen 102 is enlarged/reduced withouta position change in the depth direction.

Meanwhile, as illustrated in FIGS. 3A to 3C, if the user performs thepinch-in/pinch-out operation in a state in which the user presses apredetermined position on the display screen 102 using a left hand, asize of the operation object 104 is not changed and the position of theoperation object 104 in the depth direction is adjusted.

Hereinafter, specific explanation is given. First, as illustrated inFIG. 3A, the user presses the display screen 102, with the thumb of theleft hand. In this state, the user selects the operation object 104 withan index finger of a right hand. Thereby, a mode changes to a depthchange mode. Then, as illustrated in FIG. 3B, the user performs thepinch-in/pinch-out operation with respect to the operation object 104 tochange depth information, with the index finger and the thumb of theright band. Thereby, the depth position of the operation object 104 canbe adjusted.

FIG. 3C is a schematic view illustrating a state in which the positionof the operation object in the depth direction is adjusted, whichschematically illustrates a state in which the display screen 102 isviewed from the right side. As illustrated in FIG. 3C, the depthposition of the operation object 104 can be adjusted to the forward sideof the display screen 102, by performing the pinch-out operation. Whenthe pinch-in operation is performed, the depth position of the operationobject 104 can be adjusted to the backward side of the display screen102.

As such, if the user performs the pinch-in/pinch-out operation withrespect to the operation object 104, the depth position of the operationobject 104 is changed according to the operation. Thereby, the user canchange the depth position of the operation object 104 with a simpleoperation. In the depth change mode, the size of the operation object104 does not change and only the depth position of the operation object104 changes. However, the present disclosure is not limited thereto andboth the size and the depth position of the operation object 104 may bechanged. In the example illustrated in FIGS. 3A to 3C, the depthposition of the operation object 104 is moved to the forward side of thedisplay screen 102, by the pinch-out operation. In addition, the depthposition of the operation object 104 is moved to the backward side ofthe display screen 102, by the pinch-in operation.

FIG. 4 is a schematic view illustrating an example of the case in whicha operation member 106 such as a slider is displayed on the displayscreen 102 and a depth position of the operation object 104 is adjustedby an operation of the operation member 106. As illustrated in FIG. 4,when the user presses the display screen 102 with the thumb of the lefthand and selects the operation object 104 with the index finger of theright hand, the operation member 106 such as the slider is displayed onthe display screen 102. Thereby, the mode changes to the depth changemode. In this case, if the user performs a touch operation on theoperation member 106 and operates the operation member 106 in adirection (upward-to-downward direction) by an arrow A1 in FIG. 4, thedepth position of the operation object 104 changes. For example, if theuser operates the operation member 106 in an upward direction, asillustrated in FIG. 5A, the depth position of the operation object 104moves to the forward side of the display screen 102. If the useroperates the operation member 106 in a downward direction, asillustrated in FIG. 5B, the depth position of the operation object 104moves to the backward side of the display screen 102.

FIGS. 3A to 4 illustrate the example of the case in which the touchpanel is arranged on only the surface side of the information processingapparatus 100. However, when the touch panels are arranged on both thesurface and a back surface, an operation method in which the operationobject 104 on the display screen 102 of the surface side becomes convexwhen the user tap the touch panel from the back surface and theoperation object 104 becomes concave when the user tap the touch panelfrom the surface is enabled.

(3-2. Example of Proximity Touch Panel)

Next, the case in which the information processing apparatus 100includes a proximity touch panel will be described. FIGS. 6A to 6D areschematic views illustrating an outline of an operation of the proximitytouch panel. In the case of the proximity touch panel, an operation isenabled only by approaching the user's finger to the display screen 102in a proximity detection region of the proximity touch panel, withouttouching the display screen 102. The proximity detection region is arange of a predetermined distance above the display screen 102.

First, in a state in which the user presses the display screen 102 withthe thumb of the left hand, the user approaches the index finger of theright hand to the display screen 102, as illustrated in FIG. 6A, andstops the index finger above the display screen 102 for a constant time,as illustrated in FIG. 6B. This state is detected by the informationprocessing apparatus 100 and the mode changes to the depth adjustmentmode. The proximity distance of the index finger (distance from theindex finger of the right hand to the display screen 102) when the modechanges to the depth adjustment mode is associated with the currentdepth of the operation object 104, the proximity distance and thecurrent depth become a reference, and the depth direction of theoperation object is changed according to a change of the proximitydistance from the stop position.

In an example illustrated in FIGS. 6A to 6D, the depth position of theoperation object 104 is apart from the display screen 102 by Z1 in aforward direction, in a state of FIG. 6B. In this case, if the userapproaches the finger to the display screen 102 and a predetermined timepasses, a distance D between the user's finger and the display screen isassociated with the depth position Z1 of the operation object 104, thedistance D and the depth position Z1 become a reference, and the modechanges to the depth adjustment mode. Then, as illustrated in FIG. 6C,if the user moves the finger to a position apart from the display screen102 by d1 in a forward direction, the depth position of the operationobject 104 moves by d1 in a forward direction. Then, as illustrated inFIG. 6D, if the user moves the finger to a position apart from thedisplay screen 102 by d2 in a backward direction, the depth position ofthe operation object 104 moves by d2 in a backward direction.

When the depth adjustment mode is cancelled, the user performs anoperation for moving the finger by a constant distance or more in an xdirection or a y direction (direction parallel to the display screen102) or separating the thumb of the left hand from the display screen.Thereby, the depth adjustment mode is cancelled.

(3-3. Pressure-Sensitive Touch Panel)

Next, the case in which the information processing apparatus 100includes a pressure-sensitive touch panel will be described. Anoperation when the pressure-sensitive touch panel is used is similar tothe operation when the proximity touch panel is used. In the case of thepressure-sensitive touch panel, an operation is enabled when the userpresses the display screen 102 in a pressing force detection region ofthe pressure-sensitive touch panel with the finger. First, similar tothe case of the proximity touch panel, the user presses the displayscreen 102 with the thumb of the left hand. Then, if the usercontinuously presses the operation object 104 on the display screen 102with the index finger of the right hand using the pressing force of aconstant value or more, for a time longer than the predetermined time,the mode changes to the depth adjustment mode. Then, the depth positionof the operation object 104 is changed according to the pressing forceof the user. For example. When the pressing force is more than 100 g,the depth position of the operation object 104 moves to the backwardside of the display screen and if the pressing force is 100 g or less,the depth position of the operation object moves to the forward side ofthe display screen.

Even in the case of the pressure-sensitive touch panel, when the depthadjustment mode is cancelled, the user moves the finger by the constantdistance or more in the x and y directions or separates the thumb fromthe display screen. Thereby, the depth adjustment mode is cancelled.

4. Example of Configuration of Information Processing Apparatus

FIG. 7 is a schematic view illustrating an example of a configuration ofthe information processing apparatus 100. As illustrated in FIG. 7, theinformation processing apparatus 100 includes a RAM 202, a nonvolatilememory 204, a display unit 206 such as an LCD or an organic EL, a CPU300, and a detecting unit 208 that can detect the touch, the proximity,and the pressing force of the finger. The information processingapparatus 100 detects the operation of the user by the detecting unit208, computes the depth position of the operation object 104 by the CPU300, on the basis of the detected operation, adjusts the display of thedisplay unit 206, and adjusts the depth position. In the configurationillustrated in FIG. 7, data that is displayed on the display unit 206 istemporarily held in the RAM 202. Programs that operate the CPU 300 arestored in the nonvolatile memory 206. The display unit 206 is configuredusing a three-dimensional display (3D display). For example, the displayunit 206 causes a left eye image and a right eye image to be incident ona left eye and a right eye of the user using a polarization plate systemand enables the user to view a three-dimensional image. The detectingunit 208 corresponds to the touch sensor, the proximity sensor, or thepressure-sensitive sensor described above. Each of the touch sensor andthe proximity sensor can be configured using a capacitive sensor.

FIG. 8 is a block diagram illustrating a functional configuration of theCPU 300. In order to adjust the depth position described above, the CPU300 is configured to include an operation amount acquiring unit 302, adepth position computing unit 304, and a 3D display control unit 306.The operation amount acquiring unit 302 acquires an operation amount ofan operation input from the user, which is detected by the detectingunit 208. The depth position computing unit 304 computes the depthposition of the three-dimensionally viewable operation object, on thebasis of the operation amount. The 3D display control unit 306 executesprocessing for adjusting the depth position of the operation object 304on the basis of the depth position and displaying the operation object304 on the display screen 102. The depth position of the operationobject 304 is adjusted by adjusting parallax of the left eye image andthe right eye image. The 3D display control unit 306 executes theprocessing (illustrated in FIGS. 3A to 6D) for adjusting the depthposition and displaying the operation object and the processing(illustrated in FIG. 2) for moving the peripheral display objectaccording to the change in the depth position of the operation object106. Each block illustrated in FIG. 8 can be configured using the CPU300 and the program (software) to operate the CPU 300. In this case, theprograms can be stored in the nonvolatile memory 204, an externallyconnected USB memory, and a recording medium such as an optical disk.

5. Example of Processing in Information Processing Apparatus

Hereinafter, each processing in the information processing apparatus 100that corresponds to each of the three kinds of touch panels (normaltouch panel/proximity touch panel/pressure-sensitive touch panel) willbe described.

(5-1. Case of Normal Touch Panel)

FIGS. 9 and 10 are flowcharts illustrating processing in the case ofusing the normal touch panel. With respect to the normal touch panel,two processing of FIGS. 9 and 10 will be described.

In an example illustrated in FIG. 9, the depth position of the operationobject 104 is adjusted by the pinch-in/pinch-out operation. First, instep S110, it is determined whether the mode is the depth adjustmentmode. When it is determined that the mode is the depth adjustment mode,the process proceeds to step S112 and it is determined whether the thumbtouches the display screen 102. When it is determined that the thumbtouches the display screen 102 (“Yes”), the process proceeds to stepS114. In step S114, it is determined whether the index finger and themiddle finger touch the display screen 102. When it is determined thatthe index finger and the middle finger touch the display screen 102(“Yes”), the process proceeds to step S116. In step S116, it isdetermined whether there are middle points of the index finger and themiddle finger in a constant range. When it is determined that there arethe middle points of the index finger and the middle finger in theconstant range (“Yes”), the process proceeds to step S118. In this case,the constant range is a constant range that includes the operationobject 104. In step S118, the depth position of the operation object 104is adjusted (updated) according to the pinch distance.

Meanwhile, when the determination results of steps S112, S114, and S116are “No”, the process proceeds to step S120 and the depth adjustmentmode is cancelled.

When it is determined in step S110 that the mode is not the depthadjustment mode (“No”), the process proceeds to step S122. In step S122,it is determined whether the thumb touches the display screen 102. Whenit is determined that the thumb touches the display screen 102 (“Yes”),the process proceeds to step S121. In step S124, it is determinedwhether the index finger and the middle finger are stopped in a constantrange for a constant time. In this case, the constant range is aconstant range that includes the operation object 101. When it isdetermined in step S124 that the index finger and the middle finger arestopped in the constant range for the constant time (“Yes”), the processproceeds to step S126. In step S126, the depth position of the operationobject and the pinch distance (distance between the index finger and themiddle finger) are recorded as a reference. Next, in step S128, the modechanges to the depth adjustment mode.

Meanwhile, when the determination results of steps S122 and S124 are“No”, the mode does not change to the depth adjustment mode, the processreturns to step S110, and the following processing is repeated.

Next, processing of FIG. 10 using the normal touch panel will bedescribed. In an example illustrated in FIG. 10, the depth position ofthe operation object 104 is adjusted by the operation of the operationmember 106. First, in step S210, it is determined whether the mode isthe depth adjustment mode. When it is determined that the mode is thedepth adjustment mode, the process proceeds to step S212 and it isdetermined whether the thumb touches the display screen 102. When it isdetermined that the thumb touches the display screen 102 (“Yes”), theprocess proceeds to step S214. In step S214, it is determined whetherthe index finger touches the display screen 102. When it is determinedthat the index finger touches the display screen 102 (“Yes”), theprocess proceeds to step S216. In step S216, it is determined whetherthere is the index finger in a range of the operation member 106 such asthe slider. When it is determined that there is the index finger in therange of the operation member 106 such as the slider (“Yes”), theprocess proceeds to step S218. In step S218, the depth position of theoperation object 104 is adjusted (updated) according to the movementdistance of the operation member 106.

Meanwhile, when the determination results of steps S212, S214, and S216are “No”, the process proceeds to step S220 and the depth adjustmentmode is cancelled.

When it is determined in step S210 that the mode is not the depthadjustment mode (“No”), the process proceeds to step S222. In step S222,it is determined whether the thumb touches the display screen 102. Whenit is determined that the thumb touches the display screen 102 (“Yes”),the process proceeds to step S224. In step S224, it is determinedwhether the index finger is stopped in a constant range for a constanttime. In this case, the constant range is a constant range that includesthe operation object 104. When it is determined in step S224 that theindex finger is stopped in the constant range for the constant time(“Yes”), the process proceeds to step S226. In step S226, the depthposition of the operation object 104 and the position of the operationmember 106 (position of the slider) are recorded as a reference. Next,in step S228, the mode changes to the depth adjustment mode.

Meanwhile, when the determination results of steps S222 and S224 are“No”, the mode does not change to the depth adjustment mode, the processreturns to step S210, and the following processing is repeated.

(5-2. Case of Proximity Touch Panel)

In an example illustrated in FIG. 11, the depth position of theoperation object 104 is adjusted by the operation of the proximity touchpanel. First, in step S310, it is determined whether the mode is thedepth adjustment mode. When it is determined that the mode is the depthadjustment mode, the process proceeds to step S312 and it is determinedwhether the thumb touches the display screen 102. When it is determinedthat the thumb touches the display screen 102 (“Yes”), the processproceeds to step S314. In step S314, it is determined whether there isthe index finger in the proximity detection region. When it isdetermined that there is the index finger in the proximity detectionregion (“Yes”), the process proceeds to step S316. In step S316, it isdetermined whether there is the index finger in a constant range of thex and y directions. When it is determined that there is the index fingerin the constant range (“Yes”), the process proceeds to step S318. Inthis case, the constant range is a constant range that includes an upperside of the operation object 104. In step S318, the proximity distanceof the finger is detected and the depth position of the operation object104 is adjusted (updated) according to the proximity distance.

Meanwhile, when the determination results of steps S312, S314, and S316are “No”, the process proceeds to step S320 and the depth adjustmentmode is cancelled.

When it is determined in step S310 that the mode is not the depthadjustment mode (“No”), the process proceeds to step S322. In step S322,it is determined whether the thumb touches the display screen 102. Whenit is determined that the thumb touches the display screen 102 (“Yes”),the process proceeds to step S324. In step S324, it is determinedwhether the index finger is stopped in a constant range for a constanttime. In this case, the constant range is a constant range above theoperation object 104 in the proximity detection region. When it isdetermined in step S324 that the index finger is stopped in the constantrange for the constant time (“Yes”), the process proceeds to step S326.In step S326, the depth position of the operation object 104 and theproximity distance (distance between the finger and the display screen104) are recorded as a reference. Next, in step S328, the mode changesto the depth adjustment mode.

Meanwhile, the determination results of steps S322 and S324 are “No”,the mode does not change to the depth adjustment mode, the processreturns to step S310, and the following processing is repeated. Asdescribed above, if the finger is stopped for the constant time or morein a state in which the proximity of the finger is detected, the modechanges to the depth adjustment mode. If the proximity distance ischanged in the depth adjustment mode, the depth of the operation object106 that is an adjustment object is relatively changed. When the fingermoves by the constant distance or more in the x and y directions, thedepth adjustment mode is cancelled and the mode changes to a normaltouch mode.

(5-3. Case of Pressure-Sensitive Touch Panel)

In an example illustrated in FIG. 12, the depth position of theoperation object 104 is adjusted by the operation of thepressure-sensitive touch panel. First, in step S410, it is determinedwhether the mode is the depth adjustment mode. When it is determinedthat the mode is the depth adjustment mode, the process proceeds to stepS412 and it is determined whether the thumb touches the display screen102. When it is determined that the thumb touches the display screen 102(“Yes”), the process proceeds to step S414. In step S414, it isdetermined whether there is the index finger in the pressing forcedetection region. When it is determined that there is the index fingerin the pressing force detection region (“Yes”), the process proceeds tostep S416. In step S416, it is determined whether there is the indexfinger in a constant range of the x and y directions. When it isdetermined that there is the index finger the constant range (“Yes”),the process proceeds to step S418. In this case, the constant range is aconstant range that includes the upper side of the operation object 104.In step S418, the pressing force of the finger is detected and the depthposition of the operation object 104 is adjusted (updated) according tothe pressing force.

Meanwhile, when the determination results of steps S412, S414, and S416are “No”, the process proceeds to step S420 and the depth adjustmentmode is cancelled.

When it is determined in step S410 that the mode is not the depthadjustment mode (“No”), the process proceeds to step S422. In step S422,it is determined whether the thumb touches the display screen 102. Whenit is determined that the thumb touches the display screen 102 (“Yes”),the process proceeds to step S424. In step S424, it is determinedwhether the index finger is stopped in a constant range for a constanttime. In this case, the constant range is a constant range above theoperation object 104 in the pressing force detection region. When it isdetermined in step S424 that the index finger is stopped in the constantrange for the constant time (“Yes”), the process proceeds to step S426.In step S426, the depth position of the operation object 104 and thepressing force are recorded as a reference. Next, in step S428, the modechanges to the depth adjustment mode.

Meanwhile, when the determination results of steps S422 and S424 are“No”, the mode does not change to the depth adjustment mode, the processreturns to step S410, and the following processing is repeated.

According to the embodiment described above, the user can adjust thedepth position of the operation object 106 with the simple operation onthe operation screen such as the touch panel. Therefore, the user canadjust the operation object 106 as a desired image to bethree-dimensionally viewed.

Although the preferred embodiments of the present disclosure have beendescribed in detail with reference to the appended drawings, the presentdisclosure is not limited thereto. It is obvious to those skilled in theart that various modifications or variations are possible insofar asthey are within the technical scope of the appended claims or theequivalents thereof It should be understood that such modifications orvariations are also within the technical scope of the presentdisclosure.

It should be understood by those skilled in the art that variousmodifications, combinations, sub-combinations and alterations may occurdepending on design requirements and other factors insofar as they arein the scope of the appended claims or the equivalents thereof.

Additionally, the present technology may also be configured as below.

(1) An information processing apparatus comprising:

an operation amount acquiring unit that acquires an operation amount ofan operation input on a display screen;

a depth position computing unit that computes a depth position of athree-dimensionally viewable operation object, on the basis of theoperation amount; and

-   -   a display processing unit that executes processing for adjusting        the depth position of the operation object on the basis of the        depth position and displaying the operation object on the        display screen.        (2) The information processing apparatus according to (1),

wherein the operation input is a pinch-in operation or a pinch-outoperation on the display screen.

(3) The information processing apparatus according to (1),

wherein the operation input is an operation for moving an operationmember displayed on the display screen.

(4) The information processing apparatus according to (1),

wherein the operation input is an operation for causing a user's fingerto come close to the display screen or causing the user's finger tobecome apart from the display screen.

(5) The information processing apparatus according to (1),

wherein the operation input is an operation for pressing the displayscreen.

(6) The information processing apparatus according to (1),

wherein the display processing unit adjusts the depth position of theoperation object and adjusts positions of display objects around theoperation object.

(7) The information processing apparatus according to (1),

wherein the display processing unit executes processing for adjustingthe depth position of the operation object on the basis of the depthposition, when a predetermined operation is performed.

(8) The information processing apparatus according to (7),

wherein the predetermined operation includes an operation of touchingthe display screen.

(9) The information processing apparatus according to (7),

wherein the operation amount is obtained by detection of a touch sensorand the predetermined operation includes a pinch-in operation or apinch-out operation on the display screen.

(10) The information processing apparatus according to (7),

wherein the operation amount is obtained by detection of a proximitysensor and the predetermined operation includes an operation forstopping a user's finger for a constant time, in a detectable range ofthe proximity sensor above the display screen.

(11) The information processing apparatus according to

wherein the operation amount is obtained by detection of apressure-sensitive sensor and the predetermined operation includes anoperation for pressing the pressure-sensitive sensor by a user's finger,with a pressing force of a predetermined value or more,

(12) The information processing apparatus according to (9),

wherein the operation amount is obtained by detection of apressure-sensitive sensor and the predetermined operation includes anoperation for pressing the pressure-sensitive sensor by a user's finger,with a pressing force of a predetermined value or more.

(13) An information processing method comprising:

acquiring an operation amount of an operation input on a display screen;

computing a depth position of a three-dimensionally viewable operationobject, on the basis of the operation amount; and

adjusting the depth position of the operation object on the basis of thedepth position and displaying the operation object on the displayscreen.

(14) A program for causing a computer to execute:

acquiring an operation amount of an operation input on a display screen;

computing a depth position of a three-dimensionally viewable operationobject, on the basis of the operation amount; and

adjusting the depth position of the operation object on the basis of thedepth position and displaying the operation object on the displayscreen.

The present disclosure contains subject matter related to that disclosedin Japanese Priority Patent Application JP 2011-240189 filed in theJapan Patent Office on Nov. 1, 2011, the entire content which is herebyincorporated by reference.

What is claimed is:
 1. An information processing apparatus comprising:an operation amount acquiring unit that acquires an operation amount ofan operation input on a display screen; a depth position computing unitthat computes a depth position of a three-dimensionally viewableoperation object, on the basis of the operation amount; and a displayprocessing unit that executes processing for adjusting the depthposition of the operation object on the basis of the depth position anddisplaying the operation object on the display screen.
 2. Theinformation processing apparatus according to claim 1, wherein theoperation input is a pinch-in operation or a pinch-out operation on thedisplay screen.
 3. The information processing apparatus according toclaim 1, wherein the operation input is an operation for moving anoperation member displayed on the display screen.
 4. The informationprocessing apparatus according to claim 1, wherein the operation inputis an operation for causing a user's finger to come close to the displayscreen or causing the user's finger to become apart from the displayscreen.
 5. The information processing apparatus according to claim 1,wherein the operation input is an operation for pressing the displayscreen.
 6. The information processing apparatus according to claim 1,wherein the display processing unit adjusts the depth position of theoperation object and adjusts positions of display objects around theoperation object.
 7. The information processing apparatus according toclaim 1, wherein the display processing unit executes processing foradjusting the depth position of the operation object on the basis of thedepth position, when a predetermined operation is performed.
 8. Theinformation processing apparatus according to claim 7, wherein thepredetermined operation includes an operation of touching the displayscreen.
 9. The information processing apparatus according to claim 7,wherein the operation amount is obtained by detection of a touch sensorand the predetermined operation includes a pinch-in operation or apinch-out operation on the display screen.
 10. The informationprocessing apparatus according to claim 7, wherein the operation amountis obtained by detection of a proximity sensor and the predeterminedoperation includes an operation for stopping a user's finger for aconstant time, in a detectable range of the proximity sensor above thedisplay screen.
 11. The information processing apparatus according toclaim 7, wherein the operation amount is obtained by detection of apressure-sensitive sensor and the predetermined operation includes anoperation for pressing the pressure-sensitive sensor by a user's finger,with a pressing force of a predetermined value or more.
 12. Theinformation processing apparatus according claim 7, wherein theoperation amount is obtained by detection of a pressure-sensitive sensorand the predetermined operation includes an operation for pressing thepressure-sensitive sensor by a user's finger, with a pressing force of apredetermined value or more.
 13. An information processing methodcomprising: acquiring an operation amount of an operation input on adisplay screen; computing a depth position of a three-dimensionallyviewable operation object, on the basis of the operation amount; andadjusting the depth position of the operation object on the basis of thedepth position and displaying the operation object on the displayscreen.
 14. A program for causing a computer to execute: acquiring anoperation amount of an operation input on a display screen; computing adepth position of a three-dimensionally viewable operation object, onthe basis of the operation amount; and adjusting the depth position ofthe operation object on the basis of the depth position and displayingthe operation object on the display screen.